Sideboard



FIG. 1 is a left front perspective view of a sideboard showing our newdesign;

FIG. 2 is a side elevational view, the opposite side being a mirrorimage thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is an enlarged partial perspective lower right view; and,

FIG. 6 is an enlarged partial perspective upper right view.

The bottom and rear views of the design are not shown and form no partof the claimed design. The dashed lines are for environmental elementsonly and form no part of the claimed design.

The ornamental design for a sideboard, as shown and described.